CN104121625B - Energy-saving air conditioner and control method thereof - Google Patents
Energy-saving air conditioner and control method thereof Download PDFInfo
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- CN104121625B CN104121625B CN201310141861.7A CN201310141861A CN104121625B CN 104121625 B CN104121625 B CN 104121625B CN 201310141861 A CN201310141861 A CN 201310141861A CN 104121625 B CN104121625 B CN 104121625B
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Abstract
The invention relates to an energy-saving air conditioner and a control method thereof. The energy-saving air conditioner comprises a first circulating system, a second circulating system and a controller. The first circulating system and the second circulating system can operate at the same time or in a separate mode. The first circulating system comprises a pump electrically connected with the controller, a first evaporator component connected with the pump and a first condenser connected with the first evaporator component. The second circulating system comprises a compressor electrically connected with the controller, a second evaporator component connected with the compressor and a radiator connected with the second evaporator component. The two circulating systems of the energy-saving air conditioner can be combined into different energy-saving operation modes according to outdoor temperature and indoor thermal load changing, the efficiency of compressor circulating is improved, the time and the range for cooling with a natural cooling source are increased, the requirement for machine room dynamic cooling is met, and meanwhile a whole-year complete dehumidification function is achieved.
Description
Technical field
The present invention relates to a kind of energy-saving type air conditioner and its control method.
Background technology
With the fast development of Modernized Information Technology and cloud computing, the quantity at communications equipment room data center and scale
Constantly expand, and the power consumption of the air conditioning system for cooling down electronic equipment in the data center occupies very big proportion, exceedes
40%.With the quick enhancing increasing with electronic equipment temperature capability of data center's unit area heat generation density, precise machine room air conditioner
Also it is faced with lot of challenges, such as high heat density cooling, high-temperature application, energy-saving run, dynamically accurate refrigeration etc..
Occurred in that some new air conditioner in machine room in recent years, air-conditioning (or being air-conditioning between frame, in the ranks air-conditioning) between such as arranging, double
Circulation air conditioner etc., these air-conditionings are compared traditional air conditioner and are had significant energy saving.
Fig. 1 is the schematic diagram of the application mode of air-conditioning 101 between row in prior art, and between row, air-conditioning 101 is placed on electronics and sets
Around standby 102, this setup can realize near-thermal source cooling, greatly improves the cooling effectiveness of air-flow, but air-conditioning 101 between row
Winter cannot be cooled down using outdoor natural cooling source, or the operational efficiency of air-conditioning not high it is impossible to fully meet air conditioner in machine room
The demand of energy-saving run.
Fig. 2 is the schematic diagram of dual-circulation air conditioner 103 operation logic in prior art.As shown in Fig. 2 this dual-circulation air conditioner
103 include compressor 104 first valve member 105 in parallel with compressor 104, condenser 106, pump 107 in parallel with pump 107
Two valve members 108 and vaporizer 109.In summer, when outdoor temperature is higher, using conventional refrigeration mode, cold-producing medium leads to successively
Overcompression machine 104, condenser 106, the second valve member 108, vaporizer 109, return at compressor 104, cold-producing medium is compressed into height
The overheated gas of warm high pressure, at condenser 106, the gaseous refrigerant of High Temperature High Pressure coagulates for liquid, and distributes amount of heat and arrive
In outdoor environment；At vaporizer 108, liquid refrigerant is evaporated to gaseous refrigerant, absorbs amount of heat, so that in machine room
Temperature reduce.In the winter time, when outdoor temperature is relatively low, close compressor 104, cold-producing medium, in the presence of pump 107, passes sequentially through
Pump 107, vaporizer 109, the first valve member 105, condenser 106, cold-producing medium is condensed into liquid in condenser 106, discharges heat
To in low temperature environment, cold-producing medium is cooled down.Cold-producing medium is evaporated to gas by vaporizer 109, absorbs the heat in machine room, right
Machine room is cooled down.
Dual-circulation air conditioner is used pump or compressor as circulation power, outdoor natural cooling source can be utilized in the winter time, and
Including two blood circulation, but this two blood circulation will not work simultaneously, only one of which blood circulation run it is impossible to
Realize hybrid cooling, the time in season of natural cooling source application is shorter, and compressor cycle condenser adopts air cooling way to run
Less efficient it is impossible to fully meeting machine room energy-saving, the demand of dynamic cooling being carried out according to outdoor temperature change.
Content of the invention
The technical problem to be solved in the present invention is, for air conditioning system in prior art operational efficiency relatively low, cannot
Meet the defect that machine room carries out the demand of dynamic cooling according to outdoor temperature change, a kind of energy-saving type air conditioner and its controlling party are provided
Method, can improve efficiency and meet the demand of machine room energy-saving, dynamic cooling.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of energy-saving type air conditioner, including can simultaneously or
The first circulation system of isolated operation and second circulation system and controller,
Described first circulation system includes: pump, the first vaporizer being connected with described pump with the electrical connection of described controller
Assembly and the first condenser being connected with described pump；
Described second circulation system includes: with the compressor of described controller electrical connection, be connected with described compressor the
Two evaporator assemblies and be connected to the heat exchanger between described compressor and described second evaporator assemblies；
Between described pump and described first evaporator assemblies, it is provided with the first three-way valve, described heat exchanger is connected to institute
State between the first evaporator assemblies and described first condenser, and include the first circuit entrance and the first circuit outlet, described the
Primary Ioops entrance is connected with described first evaporator assemblies and described first three-way valve, described first circuit outlet with described
First condenser is connected.
According to energy-saving type air conditioner of the present invention, described first evaporator assemblies include multiple first evaporations parallel with one another
Device and be arranged on the first fan before described first vaporizer, each described first vaporizer with for control enter described
The first flow control valve of the temperature working fluid of the first vaporizer is connected.
According to energy-saving type air conditioner of the present invention, described energy-saving type air conditioner also includes the second three-way valve and the 3rd three-way valve, institute
State the first circuit entrance to be connected with described first evaporator assemblies by described 3rd three-way valve, and the first circuit outlet passes through institute
State the second three-way valve to be connected with described first condenser；Described second three-way valve is connected with the 3rd three-way valve.
According to energy-saving type air conditioner of the present invention, described energy-saving type air conditioner include for run under natural cooling pattern the
Primary Ioops, described pump, the first evaporator assemblies and the first condenser are sequentially connected in series described first loop of formation.
According to energy-saving type air conditioner of the present invention, described energy-saving type air conditioner is included under First Transition season mixed model
The second servo loop running and tertiary circuit, described compressor, the second evaporator assemblies and heat exchanger series connection form described second
Loop；Described pump, the first evaporator assemblies, heat exchanger and the first condenser are sequentially connected in series the described tertiary circuit of formation.
According to energy-saving type air conditioner of the present invention, described energy-saving type air conditioner is included under the second transition season mixed model
The first loop, second servo loop and the 4th loop run, described pump, the first evaporator assemblies and the first condenser are sequentially connected in series shape
Become described first loop；Described compressor, the second evaporator assemblies and heat exchanger series connection form described second servo loop；Described
Pump, heat exchanger and the first condenser are sequentially connected in series described 4th loop of formation.
According to energy-saving type air conditioner of the present invention, described energy-saving type air conditioner includes second time for running under summer mode
Road and the 4th loop, described compressor, the second evaporator assemblies and heat exchanger series connection form described second servo loop；Described pump,
Heat exchanger and the first condenser are sequentially connected in series described 4th loop of formation.
According to energy-saving type air conditioner of the present invention, described energy-saving type air conditioner include for run under natural cooling pattern the
Three loops, described pump, the first evaporator assemblies, heat exchanger and the first condenser are sequentially connected in series into described tertiary circuit.
According to energy-saving type air conditioner of the present invention, described energy-saving type air conditioner is included under the second transition season mixed model
Second servo loop, tertiary circuit and the 4th loop run, described compressor, the second evaporator assemblies and heat exchanger series connection shape
Become described second servo loop；Described pump, the first evaporator assemblies, heat exchanger and the first condenser are sequentially connected in series formation described the
Three loops, described pump, heat exchanger and the first condenser are sequentially connected in series described 4th loop of formation.
According to energy-saving type air conditioner of the present invention, described compressor is variable conpacitance compressor.
Present invention also offers a kind of control method of energy-saving type air conditioner, for controlling the fortune of energy-saving type air conditioner as above
OK, described control method includes:
When outdoor temperature is less than or equal to t1, described first circulation system isolated operation；
When outdoor temperature is higher than t1 and during less than or equal to t3, described first circulation system and the same luck of second circulation system
OK, and described first circulation system takes away the heat in described second circulation system by described heat exchanger；
Wherein t1 < t3.
According to control method of the present invention, methods described also includes: when outdoor temperature is higher than t1 and is less than or equal to
During t2, described compressor, the second evaporator assemblies and heat exchanger series connection form second servo loop；Described pump, the first vaporizer group
Part, heat exchanger and the first condenser are sequentially connected in series formation tertiary circuit, and described second servo loop and tertiary circuit run simultaneously,
Wherein t1 < t2 < t3.
According to control method of the present invention, described energy-saving type air conditioner also includes the second three-way valve and the 3rd three-way valve, institute
State the first circuit entrance to be connected with described first evaporator assemblies by described 3rd three-way valve, and the first circuit outlet passes through institute
State the second three-way valve to be connected with described first condenser；Described second three-way valve is connected with the 3rd three-way valve.
According to control method of the present invention, methods described also includes: when outdoor temperature is higher than t2 and is less than or equal to
During t3, described pump, the first evaporator assemblies and the first condenser are sequentially connected in series described first loop of formation；Described compressor,
Two evaporator assemblies and heat exchanger series connection form second servo loop；Described pump, heat exchanger and the first condenser are sequentially connected in series
Form the 4th loop, described first, second, the 4th loop run simultaneously, wherein t1 < t2 < t3.
According to control method of the present invention, methods described also includes: when outdoor temperature is higher than t2 and is less than or equal to
During t3, described compressor, the second evaporator assemblies and heat exchanger series connection form second servo loop；Described pump, the first vaporizer group
Part, heat exchanger and the first condenser are sequentially connected in series formation tertiary circuit, and described pump, heat exchanger and the first condenser are successively
Series connection formed the 4th loop, described second, third, the 4th loop run simultaneously, wherein t1 < t2 < t3.
According to control method of the present invention, methods described also includes: when outdoor temperature is higher than t3, described compression
Machine, the second evaporator assemblies and heat exchanger series connection form second servo loop；Described pump, heat exchanger and the first condenser are successively
Series connection forms the 4th loop, and described second servo loop and the 4th loop are run simultaneously.
According to control method of the present invention, described compressor is portion capacity running status.
Implement energy-saving type air conditioner and its control method of the present invention, have the advantages that two blood circulation can be same
When mixed running, can according to the change of outdoor temperature and indoor heat load, two cooling circulation be combined into different operation moulds
Formula, by realize efficiently, in the way of dynamic cooling.The energy saving of air-conditioning can be improved, improve efficiency, meet machine room dynamic cooling
Demand, has annual complete dehumidification function simultaneously.
Brief description
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the schematic diagram of the application mode of air-conditioning between row in prior art；
Fig. 2 is the schematic diagram of dual-circulation air conditioner operation logic in prior art；
Fig. 3 is the schematic diagram according to the first embodiment of the present invention, energy-saving type air conditioner；
Fig. 4 be according to the first embodiment of the present invention, energy-saving type air conditioner natural cooling pattern operation schematic diagram；
Fig. 5 is to be illustrated in the operation of First Transition season mixed model according to the first embodiment of the present invention, energy-saving type air conditioner
Figure；
Fig. 6 is to be illustrated in the operation of the second transition season mixed model according to the first embodiment of the present invention, energy-saving type air conditioner
Figure；
Fig. 7 be according to the first embodiment of the present invention, energy-saving type air conditioner summer mode operation schematic diagram；
Fig. 8 be according to the second embodiment of the present invention, the schematic diagram of energy-saving type air conditioner；
Fig. 9 be according to the third embodiment of the invention, the schematic diagram of energy-saving type air conditioner；
Figure 10 be according to the third embodiment of the invention, energy-saving type air conditioner natural cooling pattern operation schematic diagram；
Figure 11 be according to the third embodiment of the invention, energy-saving type air conditioner First Transition season mixed model operation illustrate
Figure；
Figure 12 be according to the third embodiment of the invention, energy-saving type air conditioner the second transition season mixed model operation illustrate
Figure；
Figure 13 be according to the third embodiment of the invention, energy-saving type air conditioner summer mode operation schematic diagram；
Figure 14 be according to the fourth embodiment of the invention, the schematic diagram of energy-saving type air conditioner；
Figure 15 be according to the fifth embodiment of the invention, the schematic diagram of energy-saving type air conditioner.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
Fig. 3 is the schematic diagram according to the first embodiment of the present invention, energy-saving type air conditioner.As shown in figure 3, the energy-conservation of the present invention is empty
Tune 20 includes the first circulation system 300 that can concurrently or separately run and second circulation system 400 and for controlling first to follow
The controller 201 of loop systems 300 and second circulation system 400.
Wherein, first circulation system 300 includes the pump 301 electrically connecting with controller 201, the first steaming being connected with pump 301
Send out device assembly 302 and the first condenser 303 being connected with pump 301；Pump 301, the first evaporator assemblies 302 and the first condensation
Device 303 three connects, and forms the first loop of first circulation system 300.Between pump 301 and the first condenser 303, also set up
There is the reservoir 304 being parallel on this first loop, this reservoir 304 is used for supplementing working fluid or storage working fluid.
Wherein first evaporator assemblies 302 can include multiple first vaporizer 302a parallel with one another and be arranged on
The first fan 302b before first vaporizer 302a, each first vaporizer 302a also with a single first flow control valve
302c is connected, and first flow control valve 302c can be mechanical flow control valve or electrically connect with controller 201
Electric-controlled type flow control valve.At the first evaporator assemblies 302, from pump 301 gaseous working fluid through the first vaporizer group
Part 302 enters, and is converted into gaseous state, absorbs heat, and the air in machine room, after the first evaporator assemblies 302, is changed into cold air
Flow out, so that the temperature in machine room reduces.Afterwards, the working fluid of high temperature flows out from the first evaporator assemblies 302.First
At condenser 303, the working fluid radiating of high temperature is condensed into liquid, and the heat distributing is blown to outdoor.
Between pump 301 and the first evaporator assemblies 302, be provided with the first three-way valve 305, this first three-way valve 305 with
Controller 201 electrically connects.On the first loop, between the first evaporator assemblies 302 and the first condenser 303, it is provided with second
Three-way valve 306.
On the first loop, between the first evaporator assemblies 302 and the second three-way valve 306, it is additionally provided with the 3rd three-way valve
308.And second three-way valve 306 be connected with the 3rd three-way valve 308.
It should be noted that the second three-way valve 306, the 3rd three-way valve 308 are not necessary.The second threeway can be cancelled
Valve 306, the 3rd three-way valve 308 and the pipeline on the first loop between the two.This is hereinafter with reference to Fig. 9 in addition
Description.
Second circulation system 400 include with controller 201 electrical connection compressor 401, be connected with compressor 401 second
Evaporator assemblies 402 and be connected to heat exchanger 405 between compressor 401 and the second evaporator assemblies 402, wherein compress
Machine 401 is variable conpacitance compressor, that is, its output capacity is adjustable；This compressor 401, the second evaporator assemblies 402, Yi Jihuan
Hot device 405 three series connection, forms second servo loop.Specifically, this heat exchanger 405 includes second servo loop entrance 405a and second time
Way outlet 405b, second servo loop entrance 405a is connected with compressor 401, and second servo loop exports 405b and the second evaporator assemblies
402 are connected.
Heat exchanger 405 is connected between the first evaporator assemblies 302 and the first condenser 303 by pipeline, and heat exchanger
405 pipelines being connected with the first evaporator assemblies 302 are also connected with the first three-way valve 305.Specifically, heat exchanger 405 includes
First circuit entrance 405c and the first circuit outlet 405d, this first circuit entrance 405c is connected with the first evaporator assemblies 302,
First circuit outlet 405d is connected with the first condenser 303.
In the embodiment shown in fig. 3, the first circuit entrance 405c of heat exchanger 405 is connected with the first three-way valve 305.And
And first circuit entrance 405c be connected with the first evaporator assemblies 302 by the 3rd three-way valve 308, and the first circuit outlet 405d
It is connected with the first condenser 303 by the second three-way valve 306, and the second three-way valve 306 is connected with the 3rd three-way valve 308.
Between the second evaporator assemblies 402 and heat exchanger 405, it is provided with flow valve 403.At compressor 401, work
Fluid is compressed into the gaseous working fluid of High Temperature High Pressure, and at the second evaporator assemblies 402, the condensing agent of liquid is converted into gas
State, absorbs heat, so that the temperature in machine room reduces.Heat exchanger 405, as the radiator of second circulation system 400, is used for
Working fluid in second circulation system 400 is radiated.It is, first circulation system 300, second circulation system 400
Interior working fluid all flows through heat exchanger 405 and heat-shift.The heat of the working fluid in second circulation system 400 passes through the
Working fluid in one blood circulation 300 is taken away.
In order to obtain optimal heat transfer effect, the second servo loop entrance 405a and the first circuit outlet 405d of heat exchanger 405
Positioned at the same side, and second servo loop outlet 405b and the first circuit entrance 405c is located at the same side so that first circulation system
300th, the fluid in second circulation system 400 flows through in heat exchanger 405 in a reverse direction.
Wherein second evaporator assemblies 402 can include multiple second vaporizer 402a parallel with one another and be arranged on
The second fan 402b before second vaporizer 402a.And the first vaporizer 302 and the second evaporator assemblies 402 can be assembled in
Together, building environment is carried out concentrate cooling.
In the first embodiment of the present invention, the first condenser 303 is air-fluid heat exchanger, it is, working fluid
Heat-shift and air between, the first condenser 303 includes the fan 303a for auxiliary heat dissipation.First, second vaporizer group
Part 302,402 is air-fluid heat exchanger；And heat exchanger 405 is fluid-fluid heat exchanger, heat-shift between working fluid.
The preferably volatile fluid of working fluid in first loop and second servo loop, including but not limited to: r22, r134a, r407c,
R410a etc..But, working fluid can also adopt water and ethylene glycol.
First circulation system 300 is mainly used in the heating load in machine room is cooled down.First evaporator assemblies 302 can
To be arranged between frame, on frame top, frame door-plate, machine frame inside etc., these arrangements can realize the shortest sending
Wind distance, reduces the energy consumption of the first fan 302b.First evaporator assemblies 302 can also be further disposed at server internal with
Heat is taken away, before now can cancelling the first vaporizer 302a by way of conduction of heat by heating electronics device into intimate contact
Fan 302b.Because the first evaporator assemblies 302 are arranged, frame of must disembarking is nearer, and the therefore first evaporator assemblies 302 are dry pans
The evaporator assemblies that pipe runs, are not dehumidified, it is, by the temperature controlling the working fluid entering the first vaporizer 302a
Spend the dew point temperature of projecting air, it is to avoid the vapor of in the air condenses into water on the first vaporizer 302a.And control
Enter the working fluid of the first vaporizer 302a temperature be by first flow control valve 302c come realizing it is however generally that,
The flow of working fluid is less, and pressure is less, and evaporating temperature is lower, also results in the temperature of the working fluid of the first vaporizer 302a
Degree is lower.
Second circulation system 400 is mainly used in when outdoor environment temperature is higher carrying out cooling circulation, simultaneously in humidity mistake
Dehumidify in machine room when big.Because, during dehumidifying, the second evaporator assemblies 402 of second circulation system 400 can condense in a large number
Condensed water, therefore typically second circulation system 400 will not be arranged on frame top, internal or close with server apparatus
Position.
Hereinafter with reference to accompanying drawing, the running status of energy-saving type air conditioner in first embodiment of the invention is illustrated, for the ease of
Understand in figures 4-7, have, with what thick line represented system, the part that working fluid runs wherein, represent with fine rule and do not work
The part (part namely disconnecting) that fluid runs wherein.
Fig. 4 be according to the first embodiment of the present invention, energy-saving type air conditioner natural cooling pattern operation schematic diagram.As Fig. 4
Shown, when outdoor temperature is less than or equal to t1 (t1≤15 DEG C), controller 201 controls the first loop independent operating, it is,
Pump 301, the first evaporator assemblies 302 and the first condenser 303 three series connection form loop, including second circulation system 400
Other parts all disconnect.Because outdoor temperature is relatively low, can rapidly the first condenser 303 be carried out air-cooled.When need adjust
During the flow of working fluid, the adjustable pump of rotating speed, such as variable frequency pump can be adopted.
Fig. 5 is to be shown in the operation of First Transition season mixed model according to the first embodiment of the present invention, energy-saving type air conditioner 20
It is intended to.As shown in figure 5, rise when outdoor environment temperature, higher than t1 and less than or equal to t2 when (15 DEG C < t2≤20 DEG C), only the
One blood circulation 300 can not meet refrigeration needs, now start first circulation system 300 and second circulation system 400 simultaneously, and
Compressor 401 is in portion capacity and runs.Wherein, pump 301, the first evaporator assemblies 302, heat exchanger 405 and the first condensation
Device 303 is sequentially connected in series formation tertiary circuit, disconnects between the second three-way valve 306 and the 3rd three-way valve 308.Second servo loop and
Tertiary circuit runs simultaneously, and the heat of the working fluid of second servo loop is delivered to the work of tertiary circuit in heat exchanger 405
Fluid, and outdoor is dispersed into by the first condenser 303.This First Transition season mixed model can also be used for dehumidifying.
Fig. 6 is to be shown in the operation of the second transition season mixed model according to the first embodiment of the present invention, energy-saving type air conditioner 20
It is intended to.As shown in fig. 6, when outdoor environment temperature continues to rise, higher than t2 and less than or equal to (20 DEG C < t3≤25 DEG C) during t3,
Only first circulation system 300 can not meet refrigeration needs, now start first circulation system 300 and second circulation system simultaneously
400, and compressor 401 is in portion capacity operation.Wherein, pump 301, heat exchanger 405 and the first condenser 303 are gone here and there successively
Connection formed be connected with each other between the 4th loop, and the second three-way valve 306 and the 3rd three-way valve 308 so that the first loop, second time
Road, the 4th loop are run simultaneously.Flow in the first loop from a part of working fluid of pump 301 and absorb the heat in machine room
Amount, from another part operating fluid crosses the 4th loop of pump 301, and absorbs the heat in second servo loop in heat exchanger 405
Amount.This second transition season mixed model can also be used for dehumidifying.
Fig. 7 be according to the first embodiment of the present invention, energy-saving type air conditioner 20 summer mode operation schematic diagram.As Fig. 7 institute
Show, when outdoor environment temperature continues rising, is higher than t3, start first circulation system 300 and second circulation system 400 simultaneously,
Wherein second servo loop, the 4th loop are run simultaneously, and the first condenser 303 disconnects.Compressor 401 be in portion capacity run or
Full capacity is run.Flow in the 4th loop from whole working fluids of pump 301 and absorb second servo loop in heat exchanger 405
In heat.When being dehumidified it is also possible to be switched to this pattern when other patterns carry out dehumidifying and still can not meet and require.
It should be noted that operation and the conversion of the energy-saving type air conditioner 20 that is defined by outdoor temperature in above embodiment, starts,
But the present invention is not limited, if necessary, can be defined by indoor temperature, start the operation of energy-saving type air conditioner and conversion, when with
Indoor temperature is punctual, for example t1≤25 DEG C, 25 DEG C of < t2≤30 DEG C, 30 DEG C of < t3≤35 DEG C.Its switch mode and above-mentioned enforcement
Example is identical, will not be described here.
The energy-saving type air conditioner 20 of first embodiment of the invention can achieve multiple vaporizer near-thermal source coolings, the arrangement spirit of vaporizer
Live, capacity is adjustable, is capable of dynamic, accurate cooling.It is integrated with four kinds of refrigerating modes in energy-saving type air conditioner 20, in natural cooling
Pattern be can achieve and cooled down using the natural cooling source of outdoor low temperature environment, mixed in first, second transition season mixed model
Close operation and expand natural cooling range of operation, significantly improve the time of the energy-saving run of system, have complete, annual simultaneously
Dehumidifying effect.These refrigerating modes can realize annual energy-saving run with free switching.Refrigeration device negligible amounts, controlling party
Method is simply effective.Under partial mode, first circulation system 300 can be through heat exchanger 405 in second circulation system 400
Working fluid is cooled down, and can improve the operational efficiency of first, second blood circulation 300,400.
Fig. 8 be according to the second embodiment of the present invention, the schematic diagram of energy-saving type air conditioner.With first embodiment identical part not
Repeat again.From unlike first embodiment, the first condenser 303 is fluid-fluid heat exchanger, it is, passing through cooling water
To take away heat.As shown in figure 8, in this embodiment, replace the fan in first embodiment using cooling water pipeline 302b
303a, can reach same purpose.
Fig. 9 be according to the third embodiment of the invention, the schematic diagram of energy-saving type air conditioner.With first embodiment identical part not
Repeat again.From unlike first embodiment, in the third embodiment, cancel the second three-way valve 306, the 3rd three-way valve 308, with
And the path on the first loop between the two.First circuit entrance 405c of heat exchanger 405 and the first evaporator assemblies 302
Be connected, the first circuit outlet 405d is connected with the first condenser 303, pump 301, the first evaporator assemblies 302, heat exchanger 405, with
And first condenser 303 be directly sequentially connected in series formation tertiary circuit.Meanwhile, the first circuit entrance 405c of heat exchanger 405 and
One three-way valve 305 is connected.
Figure 10 be according to the third embodiment of the invention, energy-saving type air conditioner natural cooling pattern operation schematic diagram；As figure
Shown in 10, when outdoor is less than or equal to t1 when (t1≤15 DEG C), controller 201 controls tertiary circuit independent operating, it is,
Pump 301, the first evaporator assemblies 302, heat exchanger 405 and the first condenser 303 4 are sequentially connected in series formation tertiary circuit,
Other parts including second circulation system 400 all disconnect, the first circuit entrance 405c of heat exchanger 405 and the first three-way valve
Path between 305 also disconnects.Because outdoor temperature is relatively low, can rapidly the first condenser 303 be carried out air-cooled.Work as needs
During the flow of adjustment work fluid, the adjustable pump of rotating speed, such as variable frequency pump can be adopted.
Figure 11 be according to the third embodiment of the invention, energy-saving type air conditioner 20 shows in the operation of First Transition season mixed model
It is intended to；As shown in figure 11, rise when outdoor environment temperature, higher than t1 and less than or equal to t2 when (15 DEG C < t2≤20 DEG C), only the
One blood circulation 300 can not meet refrigeration needs, now start first circulation system 300 and second circulation system 400 simultaneously, and
Compressor 401 is in portion capacity and runs.Wherein, pump 301, the first evaporator assemblies 302, heat exchanger 405 and the first condensation
Device 303 is sequentially connected in series formation tertiary circuit, logical between the first circuit entrance 405c of heat exchanger 405 and the first three-way valve 305
Road disconnects.Second servo loop and tertiary circuit run simultaneously, and the heat of the working fluid of second servo loop is passed in heat exchanger 405
To the working fluid of tertiary circuit, and outdoor is dispersed into by the first condenser 303.This First Transition season mixed model also may be used
For dehumidifying.
The operation of the First Transition season mixed model of 3rd embodiment is identical with first embodiment.
Figure 12 be according to the third embodiment of the invention, energy-saving type air conditioner 20 shows in the operation of the second transition season mixed model
It is intended to.As shown in figure 12, when outdoor environment temperature continues to rise, higher than t2 and less than or equal to (20 DEG C < t3≤25 DEG C) during t3,
Only first circulation system 300 can not meet refrigeration needs, now start first circulation system 300 and second circulation system simultaneously
400, and compressor 401 is in portion capacity operation.Wherein, pump 301, heat exchanger 405 and the first condenser 303 are gone here and there successively
Connection forms the 4th loop so that second servo loop, tertiary circuit, the 4th loop run simultaneously.A part of workflow from pump 301
The heat that body flows in tertiary circuit and absorbs in machine room, from another part operating fluid crosses the 4th loop of pump 301,
And absorb the heat in second servo loop in heat exchanger 405.This second transition season mixed model can also be used for dehumidifying.
Figure 13 be according to the third embodiment of the invention, energy-saving type air conditioner 20 summer mode operation schematic diagram.As Figure 13
Shown, when outdoor environment temperature continues rising, is higher than t3, start first circulation system 300 and second circulation system simultaneously
400, wherein second servo loop, the 4th loop is run simultaneously, and the first condenser 303 disconnects.Compressor 401 is in portion capacity and runs
Or full capacity is run.Flow in the 4th loop from whole working fluids of pump 301 and absorb second in heat exchanger 405
Heat in loop.When being dehumidified it is also possible to be switched to this pattern when other patterns carry out dehumidifying and still can not meet and require.
The operation of the summer mode of 3rd embodiment is identical with first embodiment.
It should be noted that operation and the conversion of the energy-saving type air conditioner 20 that is defined by outdoor temperature in above embodiment, starts,
But the present invention is not limited, if necessary, can be defined by indoor temperature, start the operation of energy-saving type air conditioner and conversion, when with
Indoor temperature is punctual, for example t1≤25 DEG C, 25 DEG C of < t2≤30 DEG C, 30 DEG C of < t3≤35 DEG C.Its switch mode and above-mentioned enforcement
Example is identical, will not be described here.
Figure 14 be according to the fourth embodiment of the invention, the schematic diagram of energy-saving type air conditioner.With first embodiment identical part
Repeat no more.As shown in figure 14, the energy-saving type air conditioner 20 of the present invention includes first circulation system 300 He that can concurrently or separately run
Second circulation system 400 and the controller 201 for controlling first circulation system 300 and second circulation system 400.
From unlike first embodiment, in the fourth embodiment, energy-saving type air conditioner 20 no longer includes heat exchanger, follows first
In loop systems 300, also no longer include multiple disposable loops, but only include the first loop.
Wherein, first circulation system 300 includes the pump 301 electrically connecting with controller 201, the first steaming being connected with pump 301
Send out device assembly 302 and the first condenser 303 being connected with the first evaporator assemblies 302；Pump 301, the first evaporator assemblies
302 and the first condenser 303 three series connection, formed first circulation system 300 the first loop.In pump 301 and the first condenser
Between 303, it is additionally provided with the reservoir 304 being parallel in this tie point, this reservoir 304 is used for supplementing working fluid or returns
Receive working fluid.
Second circulation system 400 include with controller 201 electrical connection compressor 401, be connected with compressor 401 second
Evaporator assemblies 402 and the second condenser 404 being connected with the second evaporator assemblies 402；Compressor 401, the second vaporizer
Assembly 402 and the second condenser 404 three series connection, form the 5th loop of second circulation system 400.
In second circulation system 400, it is additionally arranged the second condenser 404, the second condenser 404 is as second circulation system
400 radiator, for radiating to the working fluid in second circulation system 400.
In this embodiment, the first condenser 303, the second condenser 404 are air-fluid heat exchangers, it is, work
Heat-shift between fluid and air, the first condenser 303 includes the fan 303a for auxiliary heat dissipation, the second condenser 404
Including the fan 404a for auxiliary heat dissipation.First, second evaporator assemblies 302,402 are air-fluid heat exchangers.
In natural cooling pattern, first circulation system 300 isolated operation, it is, controller 201 controls the first loop only
Vertical operation.Because outdoor temperature is relatively low, can rapidly the first condenser 303 be carried out air-cooled.When needing adjustment work fluid
Flow when, the adjustable pump of rotating speed, such as variable frequency pump can be adopted.
In transition season mixed model, only first circulation system 300 can not meet refrigeration needs, now start first simultaneously
Blood circulation 300 and second circulation system 400, and compressor 401 is in portion capacity operation.Now the first loop and the 5th time
Road is run simultaneously.
In summer mode, can only start second circulation system 400, it is, controller 201 controls the 5th loop independently to transport
OK, and compressor 401 be in portion capacity run or full capacity run.
This embodiment can also realize near-thermal source cooling simultaneously and natural cooling combines, and is existed using two blood circulation
Transition season carries out mixed running, can improve efficiency and meet the demand of machine room dynamic cooling.
Figure 15 be according to the fifth embodiment of the invention, the schematic diagram of energy-saving type air conditioner.With fourth embodiment identical part
Repeat no more.From unlike fourth embodiment, the first condenser 303 is fluid-fluid heat exchanger, it is, by cooling
Water is taking away heat.As shown in figure 15, in this embodiment, replaced in fourth embodiment using cooling water pipeline 303b, 404b
Fan 303a, 404a, same purpose can be reached.
The energy-saving type air conditioner 20 of the present invention can realize near-thermal source cooling and natural cooling source cooling simultaneously, and two blood circulation
Can mixed running simultaneously, the energy saving of air-conditioning can be improved, improve efficiency, and be cut according to the change of outdoor environment temperature
Change, meet the demand of machine room dynamic cooling, there is annual complete dehumidification function simultaneously.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (17)
1. a kind of energy-saving type air conditioner (20) is it is characterised in that include the first circulation system (300) that can concurrently or separately run and the
Two-circulation system (400) and controller (201),
Described first circulation system (300) includes: the pump (301) electrically connecting with described controller (201) and described pump (301)
Connected the first evaporator assemblies (302) and the first condenser (303) being connected with described pump (301)；
Described second circulation system (400) includes: the compressor (401) electrically connecting with described controller (201) and described compression
The second evaporator assemblies (402) that machine (401) is connected and be connected to described compressor (401) and described second vaporizer group
Heat exchanger (405) between part (402)；
Between described pump (301) and described first evaporator assemblies (302), it is provided with the first three-way valve (305), described heat exchange
Device (405) is connected between described first evaporator assemblies (302) and described first condenser (303), and includes the first loop
Entrance (405c) and the first circuit outlet (405d), described first circuit entrance (405c) and described first evaporator assemblies
And described first three-way valve (305) is connected, described first circuit outlet (405d) and described first condenser (303) (302)
It is connected；When described first three-way valve (305) is opened, the first circuit entrance of described pump (301) and described heat exchanger (405)
(405c) connect, when described first three-way valve (305) is closed, described pump (301) is entered with the first loop of described heat exchanger (405)
Mouth (405c) disconnects.
2. energy-saving type air conditioner (20) according to claim 1 is it is characterised in that described first evaporator assemblies (302) include
Multiple first vaporizers (302a) parallel with one another and be arranged on the first fan before described first vaporizer (302a)
(302b), each described first vaporizer (302a) and the workflow body temperature for controlling described first vaporizer (302a) of entrance
The first flow control valve (302c) of degree is connected.
3. energy-saving type air conditioner (20) according to claim 1 is it is characterised in that described energy-saving type air conditioner also includes the second three-way valve
(306) and the 3rd three-way valve (308), described first circuit entrance (405c) passes through described 3rd three-way valve (308) and described the
One evaporator assemblies (302) are connected, and the first circuit outlet (405d) is cold with described first by described second three-way valve (306)
Condenser (303) is connected；Described second three-way valve (306) is connected with the 3rd three-way valve (308).
4. energy-saving type air conditioner (20) according to claim 3 is it is characterised in that described energy-saving type air conditioner (20) is included for certainly
The first loop so run under refrigerating mode, described pump (301), the first evaporator assemblies (302) and the first condenser (303) according to
Secondary series connection forms described first loop.
5. the energy-saving type air conditioner according to claim 1 or 3 (20) it is characterised in that described energy-saving type air conditioner (20) include for
The second servo loop running under First Transition season mixed model and tertiary circuit, described compressor (401), the second vaporizer group
Part (402) and heat exchanger (405) series connection form described second servo loop；Described pump (301), the first evaporator assemblies (302),
Heat exchanger (405) and the first condenser (303) are sequentially connected in series the described tertiary circuit of formation.
6. energy-saving type air conditioner (20) according to claim 3 is it is characterised in that described energy-saving type air conditioner (20) is included for
The first loop, second servo loop and the 4th loop run under two transition season mixed models, described pump (301), the first vaporizer
Assembly (302) and the first condenser (303) are sequentially connected in series described first loop of formation；Described compressor (401), the second vaporizer
Assembly (402) and heat exchanger (405) series connection form described second servo loop；Described pump (301), heat exchanger (405), Yi Ji
One condenser (303) is sequentially connected in series described 4th loop of formation.
7. the energy-saving type air conditioner according to claim 1 or 3 (20) it is characterised in that described energy-saving type air conditioner (20) include with
Under summer mode run second servo loop and the 4th loop, described compressor (401), the second evaporator assemblies (302) and
Heat exchanger (405) series connection forms described second servo loop；Described pump (301), heat exchanger (405) and the first condenser (303) according to
Secondary series connection forms described 4th loop.
8. energy-saving type air conditioner (20) according to claim 1 is it is characterised in that described energy-saving type air conditioner (20) is included for certainly
The tertiary circuit so running under refrigerating mode, described pump (301), the first evaporator assemblies (302), heat exchanger (405), Yi Ji
One condenser (303) is sequentially connected in series into described tertiary circuit.
9. energy-saving type air conditioner (20) according to claim 1 is it is characterised in that described energy-saving type air conditioner (20) is included for
Second servo loop, tertiary circuit and the 4th loop run under two transition season mixed models, described compressor (401), the second steaming
Send out device assembly (402) and heat exchanger (405) series connection forms described second servo loop；Described pump (301), the first evaporator assemblies
(302), heat exchanger (405) and the first condenser (303) are sequentially connected in series the described tertiary circuit of formation, described pump (301), change
Hot device (405) and the first condenser (303) are sequentially connected in series described 4th loop of formation.
10. energy-saving type air conditioner according to claim 1 is it is characterised in that described compressor is variable conpacitance compressor.
A kind of 11. control methods of energy-saving type air conditioner (20), for controlling the fortune of energy-saving type air conditioner as claimed in claim 1 (20)
Row is it is characterised in that described control method includes:
When outdoor temperature is less than or equal to t1, the isolated operation of described first circulation system (300)；
When outdoor temperature is higher than t1 and during less than or equal to t3, described first circulation system (300) and second circulation system (400)
Run simultaneously, and described first circulation system (300) takes away described second circulation system (400) by described heat exchanger (405)
Interior heat；
Wherein t1 < t3.
12. control methods according to claim 11 are it is characterised in that methods described also includes: when outdoor temperature is higher than
T1 and less than or equal to t2 when, described compressor (401), the second evaporator assemblies (402) and heat exchanger (405) series connection shape
Become second servo loop；Described pump (301), the first evaporator assemblies (302), heat exchanger (405) and the first condenser (303) according to
Secondary series connection forms tertiary circuit, and described second servo loop and tertiary circuit run simultaneously, wherein t1 < t2 < t3.
13. control methods according to claim 11 are it is characterised in that described energy-saving type air conditioner also includes the second three-way valve
(306) and the 3rd three-way valve (308), described first circuit entrance (405c) passes through described 3rd three-way valve (308) and described the
One evaporator assemblies (302) are connected, and the first circuit outlet (405d) is cold with described first by described second three-way valve (306)
Condenser (303) is connected；Described second three-way valve (306) is connected with the 3rd three-way valve (308).
14. control methods according to claim 13 are it is characterised in that methods described also includes:
When outdoor temperature be higher than t2 and less than or equal to t3 when, described pump (301), the first evaporator assemblies (302) and first are cold
Condenser (303) is sequentially connected in series described first loop of formation；Described compressor (401), the second evaporator assemblies (302), Yi Jihuan
Hot device (405) series connection forms second servo loop；Described pump (301), heat exchanger (405) and the first condenser (303) are sequentially connected in series
Form the 4th loop, described first, second, the 4th loop run simultaneously, wherein t1 < t2 < t3.
15. control methods according to claim 11 are it is characterised in that methods described also includes:
When outdoor temperature be higher than t2 and less than or equal to t3 when, described compressor (401), the second evaporator assemblies (402) and
Heat exchanger (405) series connection forms second servo loop；Described pump (301), the first evaporator assemblies (302), heat exchanger (405) and
First condenser (303) is sequentially connected in series formation tertiary circuit, described pump (301), heat exchanger (405) and the first condenser
(303) be sequentially connected in series formation the 4th loop, described second, third, the 4th loop run simultaneously, wherein t1 < t2 < t3.
16. control methods according to claim 11 are it is characterised in that methods described also includes:
When outdoor temperature is higher than t3, described compressor (401), the second evaporator assemblies (302) and heat exchanger (405) string
Connection forms second servo loop；Described pump (301), heat exchanger (405) and the first condenser (303) are sequentially connected in series formation the 4th time
Road, described second servo loop and the 4th loop are run simultaneously.
17. control methods according to any one of claim 12,14,15 are it is characterised in that described compressor is part
Capacity running status.
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| CN104776524B (en) * | 2015-03-10 | 2018-07-06 | 深圳市艾特网能有限公司 | With naturally cold multi-connection refrigeration system and its control method |
| CN106642416B (en) * | 2015-11-02 | 2020-09-29 | 维谛技术有限公司 | Air conditioning system, composite condenser and operation control method and device of air conditioning system |
| CN107014013A (en) * | 2017-04-20 | 2017-08-04 | 广东申菱环境系统股份有限公司 | A kind of secondary cycle formula evaporative condenser natural cooling cooling-water machine and its control method |
| CN110939998A (en) * | 2019-11-20 | 2020-03-31 | 珠海格力电器股份有限公司 | Air conditioning system, air conditioner and control method |
| CN113654124A (en) * | 2021-08-19 | 2021-11-16 | 苏州锋雅机电实业有限公司 | Separated two-stage transmission and distribution system |
| CN115773624A (en) * | 2022-11-21 | 2023-03-10 | 广州万为制冷设备工程有限公司 | Inside and outside dual-cycle temperature and humidity regulation and control system and regulation and control method for constant-temperature and constant-humidity cold storage |
| CN116928984B (en) * | 2023-08-22 | 2024-03-19 | 广州万为制冷设备工程有限公司 | Internal and external double-circulation temperature and humidity regulation and control system and regulation and control method for constant temperature and humidity refrigeration house |
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